12648108566 has 4 divisors (see below), whose sum is σ = 18972162852. Its totient is φ = 6324054282.

The previous prime is 12648108541. The next prime is 12648108581. The reversal of 12648108566 is 66580184621.

12648108566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12648108566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3162027140 + ... + 3162027143.

It is an arithmetic number, because the mean of its divisors is an integer number (4743040713).

Almost surely, 2^12648108566 is an apocalyptic number.

12648108566 is a deficient number, since it is larger than the sum of its proper divisors (6324054286).

12648108566 is an equidigital number, since it uses as much as digits as its factorization.

12648108566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324054285.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 12648108566 in words is "twelve billion, six hundred forty-eight million, one hundred eight thousand, five hundred sixty-six".